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检测·课时达标l 知能达标演练
【基础巩固】
Ⅰ. 单项填空
1. [2012大庆高一检测]It has been four years since Barak Obama came to _____.
A. control B. power C. force D. charge
2. [2012莱阳高一检测]He was crossing the street when a car was driving fast towards him and he narrowly escaped _____.
A. killing B. being killed
C. be killed D. kill
3. [2012临沂高一检测]Safety in schools has been of great concern because of recent reports about accidents _____ students got injured or killed at school.
A. for which B. when
C. which D. in which
4. Pollution must be _____ protect the environment.
A. prevented from B. helped to
C. stopped to D. supported to
